diff --git a/OpenGrid.Framework.Data.MSSQL/OpenGrid.Framework.Data.MSSQL.csproj b/OpenGrid.Framework.Data.MSSQL/OpenGrid.Framework.Data.MSSQL.csproj
index 3f6fec7129..efb6a320d6 100644
--- a/OpenGrid.Framework.Data.MSSQL/OpenGrid.Framework.Data.MSSQL.csproj
+++ b/OpenGrid.Framework.Data.MSSQL/OpenGrid.Framework.Data.MSSQL.csproj
@@ -70,10 +70,6 @@
       <HintPath>System.Data.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="System.Data.SqlClient" >
-      <HintPath>System.Data.SqlClient.dll</HintPath>
-      <Private>False</Private>
-    </Reference>
     <Reference Include="libsecondlife.dll" >
       <HintPath>..\bin\libsecondlife.dll</HintPath>
       <Private>False</Private>
diff --git a/OpenSim.sln b/OpenSim.sln
index 3f27b402e3..effb6b6564 100644
--- a/OpenSim.sln
+++ b/OpenSim.sln
@@ -88,7 +88,7 @@ Global
     ({B0027747-0000-0000-0000-000000000000}).5 = ({8ACA2445-0000-0000-0000-000000000000})
     ({B0027747-0000-0000-0000-000000000000}).6 = ({A7CD0630-0000-0000-0000-000000000000})
     ({988F0AC4-0000-0000-0000-000000000000}).3 = ({8BE16150-0000-0000-0000-000000000000})
-    ({0A563AC1-0000-0000-0000-000000000000}).4 = ({62CDF671-0000-0000-0000-000000000000})
+    ({0A563AC1-0000-0000-0000-000000000000}).3 = ({62CDF671-0000-0000-0000-000000000000})
     ({8ACA2445-0000-0000-0000-000000000000}).4 = ({8E81D43C-0000-0000-0000-000000000000})
     ({B55C0B5D-0000-0000-0000-000000000000}).3 = ({8ACA2445-0000-0000-0000-000000000000})
     ({B55C0B5D-0000-0000-0000-000000000000}).4 = ({A7CD0630-0000-0000-0000-000000000000})
diff --git a/prebuild.xml b/prebuild.xml
index 602715e0ff..3bfcb62154 100644
--- a/prebuild.xml
+++ b/prebuild.xml
@@ -336,7 +336,6 @@
       <Reference name="System" localCopy="false"/>
       <Reference name="System.Xml"/>
       <Reference name="System.Data"/>
-      <Reference name="System.Data.SqlClient"/>
       <Reference name="OpenGrid.Framework.Data"/>
       <Reference name="libsecondlife.dll"/>
       <Files>